<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS RESTATED FINANCIAL DATA SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE CONSOLIDATED FINANCIAL STATEMENTS OF TEXAS INSTRUMENTS
INCORPORATED AND SUBSIDIARIES AS OF SEPTEMBER 30, 1999, AND FOR THE NINE MONTHS
THEN ENDED, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> SEP-30-1999
<CASH> 411
<SECURITIES> 1,864
<RECEIVABLES> 2,131
<ALLOWANCES> 72
<INVENTORY> 832
<CURRENT-ASSETS> 5,952
<PP&E> 7,122
<DEPRECIATION> 3,430
<TOTAL-ASSETS> 13,855
<CURRENT-LIABILITIES> 2,537
<BONDS> 1,161
0
0
<COMMON> 846
<OTHER-SE> 7,621
<TOTAL-LIABILITY-AND-EQUITY> 13,855
<SALES> 7,121
<TOTAL-REVENUES> 7,121
<CGS> 3,726
<TOTAL-COSTS> 3,726
<OTHER-EXPENSES> 1,046
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 55
<INCOME-PRETAX> 1,511
<INCOME-TAX> 505
<INCOME-CONTINUING> 1,006
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,006
<EPS-BASIC> .58
<EPS-DILUTED> .60
</TABLE>